diff --git a/cortex/model_registry.py b/cortex/model_registry.py
index 2620949..13c7bb2 100644
--- a/cortex/model_registry.py
+++ b/cortex/model_registry.py
@@ -90,10 +90,14 @@ ANTHROPIC_CATALOG: list[dict] = [
 ]
 
 GOOGLE_CATALOG: list[dict] = [
-    {"id": "gemini-2.5-pro",   "label": "Gemini 2.5 Pro",    "context_k": 1000},
-    {"id": "gemini-2.5-flash", "label": "Gemini 2.5 Flash",  "context_k": 1000},
-    {"id": "gemini-2.0-flash", "label": "Gemini 2.0 Flash",  "context_k": 1000},
-    {"id": "gemini-1.5-pro",   "label": "Gemini 1.5 Pro",    "context_k": 2000},
+    # Stable / generally available
+    {"id": "gemini-2.5-pro",                  "label": "Gemini 2.5 Pro",                  "context_k": 1000},
+    {"id": "gemini-2.5-flash",                "label": "Gemini 2.5 Flash",                "context_k": 1000},
+    {"id": "gemini-2.5-flash-lite",           "label": "Gemini 2.5 Flash-Lite",           "context_k": 1000},
+    # Preview
+    {"id": "gemini-3.1-pro-preview",          "label": "Gemini 3.1 Pro (preview)",        "context_k": 1000},
+    {"id": "gemini-3-flash-preview",          "label": "Gemini 3 Flash (preview)",        "context_k": 1000},
+    {"id": "gemini-3.1-flash-lite-preview",   "label": "Gemini 3.1 Flash-Lite (preview)", "context_k": 1000},
 ]